#! /bin/sh
# $Id$
# vim:et:ft=sh:sts=2:sw=2
#
# Copyright 2008 Kate Ward. All Rights Reserved.
# Released under the LGPL (GNU Lesser General Public License)
#
# Author: kate.ward@forestent.com (Kate Ward)
#
# This script runs the provided unit tests and sends the output to the
# appropriate file.
#

# treat unset variables as an error
set -u

die()
{
  [ $# -gt 0 ] && echo "error: $@" >&2
  exit 1
}

BASE_DIR="`dirname $0`/.."
LIB_DIR="${BASE_DIR}/lib"

# load libraries
. ${LIB_DIR}/shflags || die 'unable to load shflags library'
. ${LIB_DIR}/shlib || die 'unable to load shlib library'
. ${LIB_DIR}/versions || die 'unable to load versions library'

# redefining BASE_DIR now that we have the shlib functions
BASE_DIR=`shlib_relToAbsPath "${BASE_DIR}"`
BIN_DIR="${BASE_DIR}/bin"
SRC_DIR="${BASE_DIR}/src"

os_name=`versions_osName |sed 's/ /_/g'`
os_version=`versions_osVersion`

# load external flags
. ${BIN_DIR}/gen_test_results.flags

# define flags
DEFINE_boolean force false 'force overwrite' f
DEFINE_string output_dir "`pwd`" 'output dir' d
DEFINE_string output_file "${os_name}-${os_version}.txt" 'output file' o
DEFINE_boolean dry_run false "supress logging to a file" n
FLAGS "${@:-}" || exit $?
eval set -- "${FLAGS_ARGV}"

# determine output filename
output="${FLAGS_output_dir:+${FLAGS_output_dir}/}${FLAGS_output_file}"
output=`shlib_relToAbsPath "${output}"`

# checks
[ -n "${FLAGS_suite:-}" ] || die 'suite flag missing'

if [ ${FLAGS_dry_run} -eq ${FLAGS_FALSE} -a -f "${output}" ]; then
  if [ ${FLAGS_force} -eq ${FLAGS_TRUE} ]; then
    rm -f "${output}"
  else
    echo "not overwriting '${output}'" >&2
    exit ${FLAGS_ERROR}
  fi
fi
if [ ${FLAGS_dry_run} -eq ${FLAGS_FALSE} ]; then
  touch "${output}" 2>/dev/null || die "unable to write to '${output}'"
fi

# run tests
(
  cd "${SRC_DIR}";
  if [ ${FLAGS_dry_run} -eq ${FLAGS_FALSE} ]; then
    ./${FLAGS_suite} |tee "${output}"
  else
    ./${FLAGS_suite}
  fi
)

if [ ! ${FLAGS_dry_run} ]; then
  echo >&2
  echo "output written to '${output}'" >&2
fi